prevalence of anti-toxoplasma gondii and anti-neospora caninum antibodies in swine from northeastern brazil prevalência de anticorpos anti-toxoplasma gondii e anti-neospora caninum em suínos do nordeste do brasil

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ID: 204797
2010
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Abstract
A serologic survey was conducted among 130 swine slaughtered in the public slaughterhouse of the city of Patos, Paraíba State, Northeastern Brazil, to determine the prevalence of anti-Toxoplasma gondii and anti-Neospora caninum antibodies, and to verify possible associations between sex of the animals and antibody prevalence. The sera were analyzed by indirect antibody tests, considering 1:64 (T. gondii) and 1:50 (N. caninum) dilutions as cut-off points. The prevalence of anti-T. gondii antibodies was 36.2% (47/130) (95% CI = 27.9 - 45.0%) with reciprocal titers ranging from 64 to 2,048, and of anti-N. caninum antibodies was 3.1% (4/130) (95% CI = 0.8 - 7.7%) with reciprocal titers ranging from 50 to 6,400. Three of the four N. caninum-positive samples were also positive for T. gondii antibodies. All Neospora and Toxoplasma IFAT-positive animals were also positive for confirmatory immunoblotting techniques using total and purified N. caninum and T. gondii tachyzoite antigens, i.e., p38 (NcSRS2) and p30 (TgSAG1). There was no association between sex of animals and prevalence of anti-T. gondii and anti-N. caninum antibodies. This is the first indication of N. caninum natural infection in pigs from Brazil.
Foi conduzido um estudo sorológico em 130 suínos abatidos no matadouro público do município de Patos, Estado da Paraíba, Nordeste do Brasil, com o objetivo de determinar a prevalência de anticorpos anti-Toxoplasma gondii e anti-Neospora caninum, e verificar possíveis associações entre o sexo dos animais e a prevalência de anticorpos. Os soros foram analisados pelo testes de imunofluorescência indireta, considerando as diluições 1:64 (T. gondii) e 1:50 (N. caninum) como pontos de corte. A prevalência de anticorpos anti-T. gondii foi de 36,2% (47/130) (IC 95% = 27,9 - 45,0%) com títulos variando de 64 a 2.048, e anti-N. caninum de 3,1% (4/130) (IC 95% = 0,8 - 7,7%) com títulos variando de 50 a 6.400. Três das quatro amostras positivas para anticorpos anti-N. caninum também foram positivas para anticorpos anti-T. gondii. Todos os animais positivos na RIFI para Neospora e Toxoplasma também foram positivos nas técnicas confirmatórias de immunoblotting usando antígenos totais e purificados de taquizoítos de N. caninum e T. gondii, ou seja, p38 (NcSRS2) e p30 (TgSAG1). Não houve associação entre o sexo dos animais e a prevalência de anticorpos anti-T. gondii e anti-N. caninum. Essa é a primeira indicação de infecção natural por N. caninum em suínos do Brasil.
Reference Key
azevedo2010revistaprevalence Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Sérgio Santos de Azevedo;Hilda Fátima de Jesus Pena;Clebert José Alves;Antônio Alfredo de Melo Guimarães Filho;Robério Macedo Oliveira;Pavlo Maksimov;Gereon Schares;Solange Maria Gennari
Journal journal of clinical periodontology
Year 2010
DOI
10.1590/S1984-29612010000200002
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612010000200002
Keywords
toxoplasma gondii seroprevalence swine neospora caninum northeastern brazilanimal culture

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